Mold



P. PERSSON. Molo.

I 3. 1920. 1,365,124. Patented Jan. 11, 1921.

y 4 SHEETS-SHEET l.

P. PERSSON.

MOLD. APPLICATION FILED MAY 3; 1920.

Patented Jan 4 SHEETS-SHEET 2.

P. Passom MOLD.

APPLICATION FILED MAY 3. 1920.

Patented Jan. 11, 1921.

iEjETS-SHEET 3 UNITED i STATES PATENT .O-FFICE.

PAUL PERSSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO SA1\`I'I'I.AIR,Y GARBAGEBOX CO., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MOLD.

Specicatio of Letters Patent.'

Patented J an. 11, 1921.

Application filed May 3,1920. Serial No. 378,597.

To all whomct may concern:

Be it known that I, PAUL PERssoN, a citi-V zen of the United States ofAmerica, and resident of Chicago, Cook county, Illinois, have invented acertain new and useful Improvement in Molds, of which the following is aspecication.

My invention relates to an improvement iii molds, and particularly amold for forming hollow concret-e receptacles having an opening ofreduced size at the top, which receptacles are particularly adapted foruse as garbage containers, although, of course,

my molds may be employed for forming reand locking the sections of thecore together.

These and other features and .objects of my invention will be morereadily under'- stood by having reference to the accompanying drawings,in which I have illustrated one embodiment of my invention, showing themanner in which the same is employed for forming concrete garbagereceptacles.

Figure 1 is a perspective view ofl the outside container. p

Fig. 2 is a perspective view of the' separableJ top member for formingthe upper' portion of the receptacle.

Fig. 3 is a perspective view of the assembled core.

Fig. 4 is a perspective view of one of the sections of thecore.

Fig. 5 is a plan view of the assembled y core.

the mold when in assembled position, and withthe material poured betweenthe outer and. inner sections of the mold.

Fig. 9 is a transverse sectional View of the structure shown in Fig. 8.

- Fig. 10 is a perspective detail of the inember inserted in the moldfor forming an openingin the lower portion thereof.` Fig. 11 is aperspective view of the inished receptacle.

Fig, 12 is a longitudinal sectional view of the same.

.As illustrated in the drawings, the outside container or member of themold consists of two independent sections, one consisting of a sidemember' 10 and end members 11 and 12, and the other consisting of theside section 13 and end members 14- and 15. The end members 11 and 14,and 12 and 15 are reinforced by suitable angle iron flanges 16 which,when the mold is assembled, are secured together by means of bolts 17.The lower portion of the end members 10 and 14 are extended downwardlyand outwardly, as indicated at 18, for the purpose of forming anoutwardly flared face to the receptacle being formed. In order toreinforce these outer mold sections, there s is riveted to the sidesection 10 a series of metallic bars 19 to one end of each of which abar 20 is hinged. Likewise, secured to the section 13, therev is aseries of bars 21 to whichthe bars 22 are hinged. By this construction,each of the two sections of the mold carry one series of flat barsriveted theret0,to each of which a swinging bar is hinged, and thenthese hinged bars are adapted to be connected to the stationary orriveted bars of the opposite section by i'neans` of vsuitable cotterpins 23.

In Fig. 2, I have shown the section of the mold which is adapted to fitupon the top of the section shown in Fig. 1, for the' pur-v pose offorming the top of the receptacle, this top having sloping sides so asto forni an opening of a reduced size in the top of the receptacle. Thisupper portion consists of two parts 24and 25, provided with angle ironreinforcing and connecting meinbers4 26 and 27, similar to those on thelower sections, and with reinforcing bars 2S and 29, similar to thecorresponding reinforcing bars employed for the lower section. This topsection is adapted to be placed upon the top of the lower sections and13.

Within the outer section of the mold, I

place a collapsible core, shown in detail in Figs. 3, 4 and 5. This coreconsists of four independent sections, one of these sections being shownin Fig. 4. As there shown, each section consists ot' two side members l030 and 31, connected together by a bottom member 32 and forming a rightangle with each other. rIhe upper portion of these two side sections isformed with an inwardly inoline 33 and an upwardly extending flange 34.In order to reinforce these side sections, I provide longitudinallyextending angle irons 35 and 36, near the marginal edge of the members3G and 31, and also provide a cross brace 3T, which brace likewise maybe used as a handle for enabling 80 of section 3 as indicated at c.

the sections to be removed in a manner here- \inafter described. rFliesefour sections are yassembled as shown in F 3 and 5, and differ slightlyin size. Thus the section indicated as 1 in Fig. 5, is the smallest ofthe 85 this manner will become apparent from the description of themanner in which the sections of the core are removed.

In order to lock the sections of the core together, and also toreinforce the same, I

provide a locking member shown in detail in Fig. 7. This member consistsessentially of a main body portion 38 formed with a pair of curved hooks39 and 40, which are` suitably spaced apart by a forwardly eX- 46tending tongue 41. When the two adjacent sections are assembled, asshown in Fig. 6, the hooks 39 and 40 are adapted to engage on oppositesides of the angle iron flanges 35 and 36 secured to adjacent sections,while the tongue 40 is adapted to be inserted between these angle ironsand thus prevents these sections being locked too closely together, andthis tongue also bears against the outer marginal fedges of the twoadjacent sections so as to reinforce the same.

Secured to each of the sections, there is a round rod 42 curved slightlyoutwardly and secured to the adjacent angle iron so as to form a loop oreye with which the hooks 39 so and 40 may engage. `With thisconstruction,

it will be seen that when the member 38 is inserted within the mold in anearly vertical position that the hooks 39 and 40 can be hooked underthe rods 42, and then by swinging the member 38 downward, the

hooks 39 and 40 loop around the rods 42 and the tongue 41 pressesoutwardly against the marginal edges of the interlocking sections, andin this manner this locking member not only firmly locks these twosections together in their proper relative position, but likewisestrengthens and reinforces the marginal edges of the sections. While Ihave illustrated one of these locking members to be used between eachpair of adjacent sections, it will be understood that if desired,several of these locking members could be placed one above the other.

The outer mold section and collapsible core are assembled together inthe manner shown in Figs. 8 and 9, and the concrete or other material 43poured in the space between these sections. In order to form a suitableopening in the base oic the receptacle to permit the removal of thegarbage or other material therein, I provide a supplemental core member44 which consists ot a hollow box-like structure adapted to be insertedin the outwardly inclined base portion oi the mold, as indicated in Fig.S. After the material has set, the core may be removed by firstunlocking the section 1 from the adjacent sections, and then thissection, being smaller than the other sections of the core andoverlapping on the inside o the adjacent sections, can be tipped inwardby grasping the handle or bar 37 and can then be removed through thereduced opening in the top of the mold. The section 2 can then beunlocked from the section 3 and removed in a similar way, after whichthe section 3 can be removed, and finally the section 4. The core havingbeen removed, the supplemental core or insert 44 can be removed from theinside and out through the top of the mold. The outside section can thenbe easily removed by merely removing the cotter pins 33, permitting thereinforcing members to swing outwardly and then removing the bolts 17.After the mold sections are thus removed, the top cover 45 and sidecover 46 are then secured to the receptacle 43, as indicated in Fligs.11 and 12, and the receptacle'is comp ete.

It will thus be seen that I have devised a very eficient mold, and onein which the outer members can be quickly and easily assembled, and inwhich suitable reinforcing means are provided for giving these memberssuiiicient rigidity to stand the strain placed upon them during themolding operation, and have likewise provided a. very efficient coreconsisting of va plurality of independent sections which are lockedtogether but can be quickly and easily unlocked and` then individuallyremoved through an opening of reduced size in the top of the mold. c

While I have illustrated and described one particular embodiment of myinvention, it will be understood that I do not wish to be limited to theexact construction shown and described but that various changes andmodifications may be made without departing from the spirit and intentof my invention.

What I claim as my invention is:

l. In a mold, a collapsible core consisting of a plurality of adjacentoverlapping sections, such sections being of varying sizes, the smallestof said sections overlapping on the inside of both adjacent sections,the second section overlapping upon the outside of the smaller sectionand upon the inside of the next adjacent section, the third sectionoverlapping upon the outside of the second section and upon the insideof the next adjacent section, and the last and largest sectionoverlapping upon the outside of the previous adjacent section and theoutside of the smallest section.

2. In a mold, a collapsible core consisting of a plurality of adjacentoverlapping sections, such sections b'eing of varying sizes, thesmallest of said sections overlapping on the inside of both adjacentsections, the second section overlapping upon the outside of the smallersection and upon the inside of the next adjacent section, the thirdsection overlapping upon the outside of the second section and upon theinside of the next adjacent section, and the last and largest sec tionoverlapping upon the outside of the previous adjacent section and theoutside of the smallest section, and means for locking the adjacentsections together.

3. In a mold, a collapsible core consisting of a plurality of adjacentoverlapping sections, such sections being of varying sizes, the smallestof said sections overlapping on the inside of both adjacent sections,the second section overlapping upon the outside of the smaller sectionand upon the inside of the next adjacent section, the third sectionoverlapping upon the outside of the second section and upon the insideof the next adjacent section, and the last and largest sectionoverlapping upon the outside of the previous adjacent section and theoutside of the smallest section, means for locking the adjacent sectionstogether, said locking means consisting of a member provided with a pairof hooks adapted to engage in eyes formed on the adjacent members in themold, and a central tongue adapted to bear against the engaging marginaledges of the sections to reinforce the same.

4. In a mold, a collapsible core consisting of a plurality of adjacentoverlapping sections, each of said sections being provided with aninwardly extending reinforcin flange near the overlapping edges of saisections, and a locking member adapted to engage upon the opposite sidesof the anges of the two adjacent members for locking said sectionstogether, said locking member being provided with an intermediate t0n eadapted to engage between the engaging flanges to hold the adjacentsections in/ proper position and to bear against the outer edge of saidsections to thereby reinforce the same.

5. In a mold, an outside member consisting of separable sections, aseries of members rigidly secured to each of said sections, and each ofsaid members having hinged thereto a bar, means for detachablyconnecting the opposite end oi' said bars to the bar of the adjacentsection, and a collapsible core consisting of a plurality of independentSections adapted to be inserted within said day of April, 1920.

j PAUL PERSSON.

